2. Category:
• Four-point contact ball slewing bearing
• Double-row  four-point contact ball bearing
• Crossed cylindrical roller slewing bearing
• Crossed tapered roller slewing bearing
• Three-row cylindrical roller slewing bearing
 
3. Specification:
The dimension range of slewing bearings that we can manufacture is inner diameter ≥ 80mm, and outer diameter ≤ 6070mm.
 
4. Cages:
The cages of DES slewing bearings have different structures such as whole type, sectional type and separate type. Among which cages of whole type and sectional type are made of #20 steel or ZL102 aluminum casting alloys. Cages of separate type are made of polyamide resin 1010 ZL102 aluminum casting alloy or QA110-3-1.5 aluminum bronze. In present years with the development of material industry, Nylon GRPA66.25 is also widely used to produce sectional cages.
 
5. Applications:
Slewing bearings are widely used in the slewer of Hoisting and Conveying Machinery, mining machines, constructional machines, harbour machines, wind power generation machines, armarium, radar and missile launcher.